METHODS FOR PRODUCING GRANULAR MOLDING MATERIALS FOR ABRASIVE ARTICLES

METHODS FOR PRODUCING GRANULAR MOLDING MATERIALS FOR ABRASIVE ARTICLES

Granular molding materials for fabricating abrasive articles, such as, for example, grinding wheels, are produced by mixing heated abrasive grains with a resin blend including two phenol-novolac resins. Preferably, the resin blend is added to the abrasive grains in the mixer apparatus of the inventi...

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Bibliographische Detailangaben
Hauptverfasser: Lemberger, Michael, McNamara, John, Pellerin, Raymond, Holden, Robert, Goutte, Rene
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Granular molding materials for fabricating abrasive articles, such as, for example, grinding wheels, are produced by mixing heated abrasive grains with a resin blend including two phenol-novolac resins. Preferably, the resin blend is added to the abrasive grains in the mixer apparatus of the invention, which can be a bowl type mixer. The mixer can be preheated by directing a heated gas, such as air, across the mixer. The granular molding material can also include a curing agent, fillers and other materials generally employed in fabricating abrasive articles.